Before the season, the league held showcases where players tried out and were selected to be part of a player pool. The owners of the 12 teams, consisting of 10 famous YouTubers and two legends of the game (Iker Casillas and Sergio Aguero), then engage in an American sports-type draft and select their roster of 10.
But there are two additional roster spots for each team, one they can use on a current professional player and the other on an ex-professional player.
Chicharito has already made an appearance in the league along with Sergio Aguero and Iker Casillas. And perhaps the most intriguing was an anonymous current professional player in La Liga who played in a Rey Mysterio-esque mask to maintain his secrecy as he had not received permission from his professional team to play.
Pique and his co-owners have essentially hand-picked the most fun rules from other sports, some suggested and voted on by fans on Twitter, and mixed them into a perfect blend of entertainment and soccer. It's soccer done in the way you and your friends may have constructed it if you came up with the rules in your childhood. And most enjoyable for me is that they do not mean to replace organized soccer as we know it, like when FIFA cooked up their awful suggested rules a year ago to "modernize" the game.
No, this is more self-aware and sophisticated; it is a unique entity and a ton of fun.